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Aquaculture and Mariculture
 Production
Farm Design
Farms for oysters and
other marine species have been developed on Oahu by Kahuku Seafood Farms, Inc.
Makai Ocean Engineering designed and assisted in the construction of several
farms revolutionary in concept for dense oyster culture. Makai also designed
production ponds, trenches, flumes, aerators and pumping systems for a wide
variety of farms and conducted research on the basic growth and environmental
requirements of oysters. Makai also designed and built machines for the
production of oyster trays and oyster handling equipment.
National Center For
Applied Aquaculture
Under contract with the
Oceanic Institute, Makai designed a prototype tankfield for the Center for
Applied Aquaculture. This tankfield was to serve as a model for further facility
expansion into a modular research center. In addition to tankfield design, Makai
designed the research module tankfields, consulted on salt water system issues,
designed new salt water distribution pipelines, and new freshwater distribution
pipelines.
Resource Assessment
Study - Oahu
Oceanic Institute hired
Makai to conduct an inventory and assessment of their main facility's
infrastructure including: salt water resources, fresh water resources, in-place
aeration, existing drainage systems, and facility electrical. The assessment
included AutoCAD drafted overlays of all in place piping and equipment. The
study was prepared to support plans for major facility renovation and expansion
as a National Center for Applied Aquaculture.
Hatchery Development
- Egypt
Under contract with the
Oceanic Institute, Makai engineered and designed a finfish hatchery in Egypt.
The purpose of the facility is to train and advise Egyptians, Arabs, and
Africans in fresh/sea water aquaculture. It also serves as a commercial fish
hatchery which provides fry and eggs to sell to aquaculture farms. Makai's
role was to engineer and design the facility and included: design of the tank
field, water supply and distribution system, electrical system layout, aeration
system, the infiltration gallery and the feedmill,
Site Selection -
Dominican Republic/Haiti
Makai in conjunction
with Oceanic Consultants conducted a site selection study for a several hundred
hectare shrimp farm in the Monte Christi area of the Dominican Republic as well
as evaluation of alternate sites in Haiti.
Aquaculture with
OTEC
Makai conducted a study
for TRW to assess the feasibility of onshore and offshore nori farms in
conjunction with the cold water effluent from a 40 MW OTEC plant at Kahe Point,
Oahu, Hawaii.
Marine Biomass
Review
In association with
Aquaculture Associates, Makai conducted an extensive engineering and technical
review of the Gas Research Institute's (GRI) Marine Biomass Program. This review
was for a conceptual kelp farm in 100 sq. miles of open ocean, moored, and
continuously harvested and fertilized. Harvested kelp would be processed through
digesters and converted to methane.
OTEC Cold Water
Aquaculture Systems
Makai worked with the
State of Hawaii to engineer algal and salmon support facilities utilizing deep
cold ocean water. These facilities were located at the Natural Energy
Laboratory, Hawaii.
Low-Head Pumps
Aquaculture systems
frequently require large volume, low-head pumps. Makai designed and constructed
a one meter diameter Archimedes Screw type pump for supplying seawater at low
heads and low power consumption. Prototypes of both wood construction and
fiberglass have been produced. Also, a low head, 1000 gpm, all-plastic, and
easily repairable propeller pump has been designed, built, and successfully used
in seawater.
Tilapia
Farms
Makai designed the
aeration system and water supply system for a Tilapia Farm on Kauai for Astro
Marine, Inc. and with the Fowler Company on Oahu to analyze different concepts
and costs for a large scale Tilapia farm and designed the intensive aeration
system used on the farm.
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